Good watch, probably won't watch again, but can recommend if you've seen any other Parent Trap and not this one. This holds up surprisingly well: Hayley Mills did an excellent job playing both of the girls. I questioned it once, but I honestly thought it was two different people during the movie. That might explain why so much of the movie looked like green screen even though they established it was a real scene by interacting with it. It is also surprising how much 1961 green screen looks like modern 2020 "true motion" with a almost fake looking background. Yes, it is quite a gimmi...